EP1260485B1 - Vorrichtung zur biologischen Fluidbehandlung - Google Patents

Vorrichtung zur biologischen Fluidbehandlung Download PDF

Info

Publication number
EP1260485B1
EP1260485B1 EP20010112677 EP01112677A EP1260485B1 EP 1260485 B1 EP1260485 B1 EP 1260485B1 EP 20010112677 EP20010112677 EP 20010112677 EP 01112677 A EP01112677 A EP 01112677A EP 1260485 B1 EP1260485 B1 EP 1260485B1
Authority
EP
European Patent Office
Prior art keywords
microorganisms
disks
stack
disk
discs
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP20010112677
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1260485A1 (de
Inventor
Erik Jensen
Jens Christian Paulsen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Grundfos AS
Original Assignee
Grundfos AS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to DE50110806T priority Critical patent/DE50110806D1/de
Application filed by Grundfos AS filed Critical Grundfos AS
Priority to AT01112677T priority patent/ATE337273T1/de
Priority to EP20010112677 priority patent/EP1260485B1/de
Priority to US10/479,209 priority patent/US7105085B2/en
Priority to RU2003137225A priority patent/RU2299865C2/ru
Priority to JP2002591401A priority patent/JP4632630B2/ja
Priority to AU2002339028A priority patent/AU2002339028B2/en
Priority to PCT/EP2002/005749 priority patent/WO2002094724A1/de
Priority to PL368274A priority patent/PL207367B1/pl
Priority to EP02743096A priority patent/EP1390305A1/de
Priority to CA002446830A priority patent/CA2446830C/en
Publication of EP1260485A1 publication Critical patent/EP1260485A1/de
Application granted granted Critical
Publication of EP1260485B1 publication Critical patent/EP1260485B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/02—Aerobic processes
    • C02F3/10—Packings; Fillings; Grids
    • C02F3/101—Arranged-type packing, e.g. stacks, arrays
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00—Technologies for wastewater treatment
    • Y02W10/10—Biological treatment of water, waste water, or sewage

Definitions

  • the invention relates to a device for biological fluid treatment according to the features specified in the preamble of claim 1.
  • carrier biologies d. H. to microorganisms which are fixed on a carrier material with a large surface, along which the fluid to be treated is guided.
  • carrier biologies d. H. to microorganisms which are fixed on a carrier material with a large surface, along which the fluid to be treated is guided.
  • Such a method is known, for example, from EP 0 470 931 A2.
  • microorganism-affected surfaces One problem with these microorganism-affected surfaces is that the surface activity changes with increasing layer thickness, since with increasing layer thickness, the underlying microorganisms are supplied less well and thus can participate less actively in the process. The excess microorganisms are therefore at regular intervals from the surfaces to remove and remove the settling sludge, which is usually done by backwashing.
  • a device for biological fluid treatment in which the fluid flows through a trough, in which two rotating disc stacks dive on the discs microorganisms are arranged, which are used for wastewater treatment.
  • the water flows through the trough-shaped basin substantially in the axial direction of the disk stack, so that the individual disks are flowed around in succession.
  • the present invention has the object of providing a generic device in such a way that it works effectively with the smallest possible size and beyond limits the growth of microorganisms to reliably.
  • the surfaces form parts of disks or disk packages, which are arranged substantially parallel to one another and overlapping, so that when appropriate Choice and arrangement of plates and drive results in an extremely compact design, in which also the excess part of the microorganisms can be removed continuously.
  • the surfaces are advantageously formed by lying in the discs grooves and the fluid passed through these grooves.
  • the grooves are open towards the opposite disc, so that this opposite disc together with the groove forms a channel for fluid transfer.
  • the discs are preferably annular, so that a central fluid supply through the inner recess of the plate stack and the removal can be done on the outside or vice versa.
  • the grooves are substantially radially or at least radially directed, for example, so that the groove bounding edges of opposing discs are arranged so that they always meet at rotation in the same angle to each other.
  • the device is hermetically sealed or integrable in a hermetically sealed line system so that it can be pressurized with a reaction-promoting gas, for example air, in order to accelerate an aerobic reaction process.
  • the excess part of microorganisms is mechanically released from the afflicted surface and removed via the fluid flow.
  • the running reaction process is controlled much more precisely than in devices according to the prior art. It is important to obtain a basis for growth for the further microbiological process.
  • the surfaces on which the microorganisms accumulate are preferably structured from a porous or roughened material and / or in their surface.
  • Mechanical release of the excess portion of microorganisms from the surface may also be accomplished utilizing centrifugal force. It is possible to vary the layer thickness of the microorganisms by the drive speed is varied accordingly. The higher the rotational speed of the rotational body, the more microorganisms are removed due to centrifugal force, and the thinner the layer thickness of the microorganisms will be.
  • microorganism-afflicted surfaces are parts of discs or disc pacts which are arranged substantially parallel to one another and overlapping, so that with a suitable choice and arrangement of plates and drive results in an extremely compact design, in which also the excess part of the microorganisms continuously can be removed.
  • a principle is shown how by deformation of surfaces excess microorganisms can be removed.
  • two elastic, substantially flat extending body 1 which have on opposite sides surfaces 2, which are provided for the adhesion of microorganisms.
  • the mutually facing sides of the body 1 are provided with triangular grooves 3 in cross-section, such that opposite grooves 3 each form an approximately square in cross-section channel 4.
  • the microorganisms afflicted surfaces 2 limit the channels 4, wherein the fluid to be treated is passed through the channels 4.
  • the fluid flows along the channels 4 and thereby reacts with the adhering to the surfaces 2 microorganisms 5 (Fig. 2).
  • the flow cross-section of the channels 4 decreases, as shown by way of example in FIG. 2a.
  • the excess microorganisms must be removed to ensure the functioning of the device.
  • the surfaces 2 are deformed by pressing the bodies 1 against one another such that the constellation shown in FIG. 2b results, at which the microorganisms 5 of opposing grooves 3 abut one another.
  • the above-described movement of the body 1 to each other can either by pressurization of the backs and / or Switzerlandbeetzschung across the Grooves 3 done.
  • the body 1 deform elastically into the position shown in Fig. 2b.
  • the channels 4 are directed again, wherein the excess microorganisms 5 are removed from the channels 4 during renewed fluid flow, whereby the desired layer thickness of microorganisms is restored.
  • the body 1 has the same shape as in the embodiment illustrated with reference to FIG. 1, but is not arranged in pairs. Also there triangular grooves 3 are provided in cross section, the walls of which form surfaces 2 to which microorganisms 5 adhere. The fluid flows along the surfaces 2 in the direction of Nutverlaufs here. Again, the layer thickness of the microorganisms 5 increases over time.
  • a mechanical scraper 6 is provided, which is movable along the upper side of the body 1 by means of, for example, an electric, hydraulic or pneumatic drive and mechanically peels off the part of the microorganisms 5 projecting beyond the upper side of the body 1 , By the mechanical scraper 6 here the layer thickness of the microorganisms 5 is set. The removal of the separated microorganisms 5 takes place by means of the fluid.
  • the surfaces 2 illustrated with reference to FIGS. 1 and 2 or 3, which are freed of excess microorganisms according to the principles explained above, are arranged in a suitable closed and hermetically sealable container, as shown by way of example in FIG. 4.
  • the container to accelerate the microbiological process can be pressurized.
  • a container 7 in which a stack of spaced and parallel to each other arranged discs 8 is arranged on a hollow shaft 9 which is rotatably driven by a motor 10 arranged outside the container 7.
  • the interior of the hollow shaft 9 is available an inlet channel II in connection, via which the fluid to be treated passes into the container 7. It then flows through a plurality of recesses 12 in the hollow shaft 9 between the discs 8 to the outside to leave the container after treatment via an outlet channel 13.
  • the discs 8 form with their top and bottom surfaces 14, which are afflicted with microorganisms.
  • the package of discs 8 is rotatably driven via the hollow shaft 9 by means of the motor 10. This can be done continuously or discontinuously, in each case only for removing excess microorganisms. Depending on the rotational speed of the motor 10, a layer thickness determined in accordance with the centrifugal forces acts, which can drop off from the center towards the edge.
  • the embodiment of the invention shown with reference to FIGS. 5 to 8 likewise has a container 15 with inlet channel 11 and outlet channel 13.
  • two intermeshing disc stacks 16 and 17 of parallel and spaced apart annular discs 18 and 19 are provided within the container 15.
  • the discs 19 are secured by means disposed on the outside of the stack fastening bolts 21 on a common carrier 22 via diametrically arranged on the outer periphery projections 20 which is connected by means of a shaft 23 with an outside of the container 15 arranged motor 10
  • the discs 19 (Fig. 6) of the other disc stack 17 on the inner periphery projections 24 which are fixed via fastening bolts 25 on a common carrier 26 and at the bottom of the container 7.
  • the discs 18 and 19 each have on both sides grooves 27, which have a substantially rectangular cross-section and are directed substantially radially, but at different angles, as shown in FIG.
  • the discs 18 and 19 are within the stack 16 and 17 so far away arranged that the grooves 27 of a disc are channel-forming completed by the adjacent disc, the discs, however, remain easily movable to each other.
  • the grooves 24 form surfaces 28 adhere to microorganisms, so that the two disk stacks 16 and 17 form a plurality of channels with a comparatively large active surface with a small size.
  • the discs 18 and 19 can be inexpensively manufactured as plastic injection molded parts. The flow through the container takes place from the inlet channel 11 through the grooves 27 between the disk stacks 16 and 17 into the free center to the outlet channel 13.
  • microorganisms forming on the surfaces 28 with increasing layer thickness during operation of the device are removed here mechanically and preferably continuously by rotation of the shaft 23. While the plate stack fixed to inner projections 24 is fixed, the plate stack fixed to the outer projections 20 rotates, the edges 29 of the grooves 27 acting as scrapers and loosening excess microorganisms, which are then carried over the fluid flowing through and thus removed.
  • the discs 30 and 31 show an alternative stacking arrangement, which comb in the same manner as described above with reference to the disc stacks 16 and 17 with each other.
  • the disk 30 ( Figure 9) is provided with a plurality of short but comparatively small cross-section and substantially radial channels provided in a projection extending approximately radially on the disk.
  • the discs 31 have channels which are arranged spirally. With a combination of these discs 30 and 31 results in a very constant layer thickness of microorganisms, wherein the grooves of the discs 30 form the essential flow path, whereas the edges of the grooves of the discs 31 perform substantially the task of stripping.
  • This arrangement of discs 30 and 31 has very good sliding properties, so that comparatively high slice stacks can be formed.
  • Figs. 4 and 5 illustrate substantially the principal device structure
  • Fig. 11 shows how such a device may look in practice. It can here a standard motor 10 are used with downstream gear 32, is flanged to the same axis in container 33, which is substantially tubular and may have a length of for example one meter. Within this pipe section 33, the disk stacks are arranged. The hydraulic connection of the device takes place at the lower end by means of two inline flanges 34 and 35 as inlet and outlet.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Microbiology (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Biological Treatment Of Waste Water (AREA)
  • Apparatus Associated With Microorganisms And Enzymes (AREA)
  • External Artificial Organs (AREA)
EP20010112677 2001-05-25 2001-05-25 Vorrichtung zur biologischen Fluidbehandlung Expired - Lifetime EP1260485B1 (de)

Priority Applications (11)

Application Number Priority Date Filing Date Title
AT01112677T ATE337273T1 (de) 2001-05-25 2001-05-25 Vorrichtung zur biologischen fluidbehandlung
EP20010112677 EP1260485B1 (de) 2001-05-25 2001-05-25 Vorrichtung zur biologischen Fluidbehandlung
DE50110806T DE50110806D1 (de) 2001-05-25 2001-05-25 Vorrichtung zur biologischen Fluidbehandlung
RU2003137225A RU2299865C2 (ru) 2001-05-25 2002-05-24 Устройство для биологической обработки жидкости
JP2002591401A JP4632630B2 (ja) 2001-05-25 2002-05-24 生物学的流体処理デバイス
AU2002339028A AU2002339028B2 (en) 2001-05-25 2002-05-24 Device for biological fluid treatment
US10/479,209 US7105085B2 (en) 2001-05-25 2002-05-24 Device for biological fluid treatment
PCT/EP2002/005749 WO2002094724A1 (de) 2001-05-25 2002-05-24 Vorrichtung zur biologischen fluidbehandlung
PL368274A PL207367B1 (pl) 2001-05-25 2002-05-24 Urządzenie do biologicznej obróbki płynu
EP02743096A EP1390305A1 (de) 2001-05-25 2002-05-24 Vorrichtung zur biologischen fluidbehandlung
CA002446830A CA2446830C (en) 2001-05-25 2002-05-24 Device for biological fluid treatment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20010112677 EP1260485B1 (de) 2001-05-25 2001-05-25 Vorrichtung zur biologischen Fluidbehandlung

Publications (2)

Publication Number Publication Date
EP1260485A1 EP1260485A1 (de) 2002-11-27
EP1260485B1 true EP1260485B1 (de) 2006-08-23

Family

ID=8177540

Family Applications (2)

Application Number Title Priority Date Filing Date
EP20010112677 Expired - Lifetime EP1260485B1 (de) 2001-05-25 2001-05-25 Vorrichtung zur biologischen Fluidbehandlung
EP02743096A Withdrawn EP1390305A1 (de) 2001-05-25 2002-05-24 Vorrichtung zur biologischen fluidbehandlung

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP02743096A Withdrawn EP1390305A1 (de) 2001-05-25 2002-05-24 Vorrichtung zur biologischen fluidbehandlung

Country Status (10)

Country Link
US (1) US7105085B2 (ru)
EP (2) EP1260485B1 (ru)
JP (1) JP4632630B2 (ru)
AT (1) ATE337273T1 (ru)
AU (1) AU2002339028B2 (ru)
CA (1) CA2446830C (ru)
DE (1) DE50110806D1 (ru)
PL (1) PL207367B1 (ru)
RU (1) RU2299865C2 (ru)
WO (1) WO2002094724A1 (ru)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL1616621T3 (pl) * 2004-07-14 2011-11-30 Grundfos As Urządzenie do obróbki płynów
EP1717208B1 (de) 2005-04-28 2013-06-26 Grundfos Management A/S Vorrichtung zur Fluidbehandlung, insbesondere Abwasserbehandlung, mit einem Scheibenstapel
EP1854764B1 (de) * 2006-05-10 2016-12-14 Grundfos Management A/S Reaktor mit Filterplattenstapel
EP2483209A4 (en) * 2009-09-09 2014-05-21 Septicosol Inc APPARATUS FOR WASTEWATER TREATMENT
EP2733118A1 (en) * 2012-11-16 2014-05-21 New Century Membrane Technology Co., Ltd. Water treatment apparatus
JP6111058B2 (ja) * 2012-12-07 2017-04-05 東洋鋼鈑株式会社 燃料電池用セパレータ、燃料電池セル、燃料電池スタック、および燃料電池用セパレータの製造方法
RU2555881C2 (ru) * 2013-08-21 2015-07-10 Общество с ограниченной ответственностью НАУЧНО-ПРОИЗВОДСТВЕННАЯ ФИРМА "ЭТЕК ЛТД" Плавающий полимерный элемент загрузки для биологической очистки сточных вод
DE102015015945A1 (de) * 2015-12-08 2017-06-22 Gea 2H Water Technologies Gmbh Tropfkörper und Drehsprenger für einen Tropfkörper
CN110627214B (zh) * 2019-08-15 2022-02-18 西安建筑科技大学 一种改善管道内有毒气体的装置和方法

Family Cites Families (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1178601A (en) * 1967-01-05 1970-01-21 Nat Res Dev Biological Treatment of Waste Water containing Organic Matter
US3335081A (en) * 1966-02-02 1967-08-08 El-Naggar Ahmed Sami Method of treatment of sewage by biooxidation and apparatus therefor
GB1401000A (en) * 1971-12-08 1975-07-16 Nat Res Dev Biological treatment of waste water containing organic matter
US3598726A (en) * 1968-08-27 1971-08-10 Autotrol Corp Water treatment apparatus and method
DE2235470C3 (de) * 1972-07-20 1974-12-05 Maschinenfabrik Hellmut Geiger, 7500 Karlsruhe Verfahren zum Betreiben eines Tropfkörpers und Tropfkörper zur Durchführung des Verfahrens
US4162195A (en) * 1974-04-04 1979-07-24 Aktiebolaget Kalle-Regulatorer Biological testing device and method of measuring toxicity of sewage
SE381935B (sv) * 1974-04-04 1975-12-22 Kaelle Regulatorer Ab Apparat for metning av akuttoxicitet, spec. hos en delstrom av avloppsvatten
US3997443A (en) * 1975-08-21 1976-12-14 Geo. A. Hormel & Co. Apparatus for biological treatment of waste water
JPS5226765A (en) * 1975-08-26 1977-02-28 Takenaka Komuten Co Ltd Waste water purifying apparatus
JPS5320652A (en) * 1976-08-10 1978-02-25 Shin Meiwa Ind Co Ltd Rotary apparatus for aeration
JPS5330774U (ru) * 1976-08-24 1978-03-16
JPS5434544A (en) * 1977-08-23 1979-03-14 Dengyosha Mach Works Centrifugal disk for waste water treating device and method of producing same
JPS5643428Y2 (ru) * 1978-03-24 1981-10-12
DE2919244A1 (de) * 1979-05-12 1980-11-20 Mecafina Sa Tauchtropfkoerper fuer eine mechanisch- biologische abwasser-reinigungsanlage
SU804576A1 (ru) * 1979-08-01 1981-02-15 Украинский Государственныйпроектный И Научно-Исследовательскийинститут Коммунальных Сооруженийгородов Устройство дл биологическойОчиСТКи СТОчНОй жидКОСТи
JPS5938839B2 (ja) * 1980-08-06 1984-09-19 日立プラント建設株式会社 窒素含有有機性廃水の処理方法及び装置
US4345997A (en) * 1981-03-09 1982-08-24 Crane Co. Media
JPS57161496U (ru) * 1981-04-07 1982-10-09
SU999214A1 (ru) 1981-04-10 1992-04-30 Производственное Объединение "Калужский Турбинный Завод" Фильтрующий элемент
GB8413751D0 (en) * 1984-05-30 1984-07-04 Ontario Research Foundation Biological contact gas scrubber
JPS61234996A (ja) * 1985-04-09 1986-10-20 Toyo Patent & Eng Kk 嫌気性生物による汚水処理の発酵槽
DK157667C (da) * 1986-05-26 1990-07-02 Frandsen Aksel S Luftdrevet kontaktfilter
DE3903409C1 (ru) * 1989-02-02 1990-05-23 Wilhelm Prof. Dr.Phil. 1000 Berlin De Ripl
DE3925091A1 (de) * 1989-07-28 1991-01-31 Eberhard Dipl Biol Kuhn Verfahren zur biologischen behandlung von abwasser und anlage sowie reaktor zur durchfuehrung des verfahrens
RU2021214C1 (ru) 1992-08-18 1994-10-15 Павел Антонович Иващенко Загрузка для биофильтров
DE4441866A1 (de) * 1994-11-17 1996-05-23 Rainer Dr Hallebach Vorrichtung zum mehrstufigen anaeroben mikrobiellen Abbau organischer Substrate
JP2794553B2 (ja) * 1996-03-29 1998-09-10 株式会社中国シイ・エス・ケー 土壌菌を利用する回転接触式汚水処理装置
JPH1043785A (ja) * 1996-07-30 1998-02-17 Bridgestone Corp 浴水の浄化装置
DE19860942C1 (de) 1998-12-29 2000-05-04 Wolfgang Luehr Vorrichtung zur aeroben mikrobiologischen Aufbereitung von Abwasser
JP3444349B2 (ja) * 1999-09-20 2003-09-08 日立プラント建設株式会社 回転平膜装置

Also Published As

Publication number Publication date
US20040232070A1 (en) 2004-11-25
PL207367B1 (pl) 2010-12-31
EP1260485A1 (de) 2002-11-27
DE50110806D1 (de) 2006-10-05
WO2002094724A1 (de) 2002-11-28
EP1390305A1 (de) 2004-02-25
JP4632630B2 (ja) 2011-02-16
RU2003137225A (ru) 2005-04-10
AU2002339028B2 (en) 2007-07-26
CA2446830A1 (en) 2002-11-28
ATE337273T1 (de) 2006-09-15
JP2004524972A (ja) 2004-08-19
CA2446830C (en) 2008-11-18
RU2299865C2 (ru) 2007-05-27
US7105085B2 (en) 2006-09-12
PL368274A1 (en) 2005-03-21

Similar Documents

Publication Publication Date Title
DE1436269C3 (de) Verfahren zum Betrieb einer Filtervorrichtung mit selbsttätiger Reinigung für unter Druck stehende Flüssigkeiten und Vorrichtung zur Durchführung dieses Verfahrens
EP1583597B9 (de) Filtereinrichtung
EP1260485B1 (de) Vorrichtung zur biologischen Fluidbehandlung
DE2507202B2 (de) Verfahren und Vorrichtung zur kontinuierlichen Trennung einer Feststoffeenthaltenden Flüssigkeit in eingedickten Schlamm und ein Filtrat
DE2324000B2 (de) Vorrichtung zur biologischen Reinigung von Abwasser
EP0531762B1 (de) Filter zum kontinuierlichen Filtern von Feststoffe od. dgl. aufweisenden Flüssigkeiten
EP3363527B1 (de) Verfahren zum betrieb einer filtrationsanlage
WO1983003999A1 (en) Method and screw press for reducing the volume of materials
EP0006597B1 (de) Verfahren und Vorrichtung zur Belüftung von Wasser
WO2007128475A1 (de) Rotationsfilter mit zentraler feedzuführung und filterplatten hierfür
EP1854764A1 (de) Reaktor mit Filterplattenstapel
EP2002874B1 (de) Filtervorrichtung
EP0008395A1 (de) Einrichtung zum Abtrennen von Flüssigkeiten aus Suspensionen
DE2340584A1 (de) Tauchtropfkoerperanlage
EP1616621B1 (de) Vorrichtung zur Fluidbehandlung
DE19841825C2 (de) Rotationskörpervorrichtung zur aeroben Behandlung von Abwasser und flüssigen organischen Abfällen
EP0019248B1 (de) Tauchtropfkörper für eine mechanisch-biologische Abwasser-Reinigungsanlage
EP0968771B1 (de) Verfahren und Vorrichtung zur berührungslosen Kraftübertragung
DE2625230A1 (de) Vorrichtung zur biologischen abwasser-reinigung
EP0216871B1 (de) Einrichtung zum kontinuierlichen ausdampfen bzw. ausgasen von flüssigkeiten, welche zur schaumbildung neigen
EP1880982A1 (de) Filter für Teichanlagen
DE2357422C3 (de) Verfahren und Vorrichtung zum Entfernen von Verunreinigungen aus Abwasser
EP1676816B1 (de) Einrichtung zur aeroben biologischen Reinigung von Abwässern
DE2428910C3 (de) Einrichtung zum biologischen Behandeln von Abwässern
DE2559162B2 (de) Anlage zur Kompostierung von Müll und/oder eingedicktem Schlamm

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

17P Request for examination filed

Effective date: 20030311

AKX Designation fees paid

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

17Q First examination report despatched

Effective date: 20040225

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20060823

Ref country code: IE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060823

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060823

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REF Corresponds to:

Ref document number: 50110806

Country of ref document: DE

Date of ref document: 20061005

Kind code of ref document: P

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20061031

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20061123

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20061123

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20061204

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070124

ET Fr: translation filed
REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20070524

BERE Be: lapsed

Owner name: GRUNDFOS A/S

Effective date: 20070531

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20070531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20070531

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20070531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20070531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20061124

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20070525

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060823

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20070525

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060823

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20150415

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20150327

Year of fee payment: 15

Ref country code: NL

Payment date: 20150430

Year of fee payment: 15

Ref country code: IT

Payment date: 20150422

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20160526

Year of fee payment: 16

REG Reference to a national code

Ref country code: NL

Ref legal event code: MM

Effective date: 20160601

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20160525

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160525

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160601

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20170131

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160525

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 50110806

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20171201